I will finally be seting up my mobile setup and I wiil have a 102" ss whip on a 4" ss hustler spring connected to a Preditor lug style stud mount.I will be replacing coax with the BR 240 double sheild coax and stud mount and i will have positive part of coax to the stud and the sheilding to a bolt at witch i will drill a hole and put a ss bolt and attach to the plate of the Tram Tri Magnetic Mount.But from that same point should I Run a extra ground 12 guage from that same point on the plate to the chasis.I will also be running atleast a 1x4 into that setup.